Golf Flagstick Ferrule with Plastic Cap
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Solution Overview
Problem
Standard metal ferrules for golf flagsticks damage golf cups through repeated contact, causing scratches and oxidation, while plastic ferrules are not durable and prone to getting stuck due to contamination.
Innovation Solution
A plastic-capped metal ferrule with a metal body formed from aluminum, where the cap is over-molded onto the metal ferrule body, providing a softer material to reduce damage and prevent sticking, using ultra-high molecular weight polyethylene or softer metals like copper or brass for the cap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal ferrule is used, then durability is improved, but damage to the golf cup increases
Solution Approach 1:
The ferrule is constructed as a composite structure with a metal body (aluminum) for durability and a plastic cap (UHMW polyethylene) for cup protection. This combines the advantages of both materials: the metal provides structural strength while the softer plastic cap prevents scratching and marring of the golf cup surface during insertion and removal.
2Object-affected harmful factors
If a plastic ferrule is used, then damage to the golf cup is reduced, but reliability decreases due to sticking
Solution Approach 1:
The composite ferrule design uses a plastic cap to minimize cup damage while the metal body underneath prevents sticking by providing a non-absorbent, smooth surface that resists contamination buildup. The combination ensures both cup protection and reliable, repeated insertion/removal operations.
3Strength
If a metal ferrule is used, then durability is improved, but aesthetic appearance deteriorates due to oxidation
Solution Approach 1:
The plastic cap acts as an intermediary protective layer between the metal ferrule and the external environment. It prevents direct exposure of the metal surface to oxygen and moisture, thereby preventing oxidation and blemishes while allowing the metal body to maintain its structural integrity and durability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The plastic-capped metal ferrule minimizes damage to golf cups by using a softer material for the cap that reduces scratching and oxidation, while the metal body's hardness prevents sticking issues, offering a durable and aesthetically improved solution.
Implementation Method 1
The cap may be over molded onto the metal body
Data Source
AI summary
A golf flagstick is provided with a metal ferrule having a cap. The cap is softer than the metal body of the ferrule. The cap reduces wear and tear on the golf cup into which it is placed. The cap may be applied to the metal ferrule by over molding.